Estimation of sediment yield with MUSLE and monitoring . A case study for Tsiknias dam at Lesvos Island in Greece
semanticscholar(2015)
Abstract
Abstract The purpose of the present study is the estimation of sediment yield of Tsiknias river basin at the location of a dam under study. The Tsiknias res ervoir will supply drinking water at Mytilene town and at a large area of Lesvos island in Northern Greece. Moreover, a small amount of the reservoir water is intended to satisf y he demands of the downstream irrigation system at Kalloni plain. The methods used for estim ating the volume of sediment yield in this study are empirical by means of modern technologies l ke GIS models. The main methodology that estimates the sediment yield used at the present study is the Modified Universal Soil Loss Equation (MUSLE). In comparison with MUSLE, other methods have also been tested like Gavrilovic [1] and Koutsoyian nis & Tarla equations [3]. The calculation of the sediment yield volume will be finalized by m eans of the field measurements that are in progress (10/2014 – next hydrological year). This p rogram of measurements includes records of the flow, hydrometeorological data as well as se dim nt volumes (suspended and bedded sediment). Estimating the sediment transport at the location of the dam will affect not only the inactive storage of the dam, but it will also deter mine the design of the water abstraction works at the Tsiknias reservoir, as well as the des ign of structures required for a sustainable sedimentation management.
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